Structure of PDB 4v4p Chain BK Binding Site BS01

Receptor Information
>4v4p Chain BK (length=138) Species: 300852 (Thermus thermophilus HB8) [Search protein sequence] [Download receptor structure] [Download structure with residue number starting from 1] [View receptor structure]
MLTDPIADMLTRIRNATRVYKESTDVPASRFKEEILRILAREGFIKGYER
VDVDGKPYLRVYLKYGPRRQGPDPRPEQVIHHIRRISKPGRRVYVGVKEI
PRVRRGLGIAILSTSKGVLTDREARKLGVGGELICEVW
Ligand information
>4v4p Chain BA (length=1515) [Search RNA sequence] [Download ligand structure] [Download structure with residue number starting from 1] [View ligand structure]
uggagaguuugauccuggcucagggugaacgcuggcggcgugccuaagac
augcaagucgugcgggccgcgggguuuuacuccguggucagcggcggacg
ggugaguaacgcgugggugaccuacccggaagagggggacaacccgggga
aacucgggcuaaucccccauguggacccgccccuugggguguguccaaag
ggcuuugcccgcuuccggaugggcccgcgucccaucagcuaguugguggg
guaauggcccaccaaggcgacgacggguagccggucugagaggauggccg
gccacaggggcacugagacacgggccccacuccuacgggaggcagcaguu
aggaaucuuccgcaaugggcgcaagccugacggagcgacgccgcuuggag
gaagaagcccuucgggguguaaacuccugaacccgggacgaaacccccga
cgaggggacugacgguaccgggguaauagcgccggccaacuccgugccag
cagccgcgguaauacggagggcgcgagcguuacccggauucacugggcgu
aaagggcguguaggcggccuggggcgucccaugugaaagaccacggcuca
accgugggggagcgugggauacgcucaggcuagacggugggagagggugg
uggaauucccggaguagcggugaaaugcgcagauaccgggaggaacgccg
auggcgaaggcagccaccugguccacccgugacgcugaggcgcgaaagcg
uggggagcaaaccggauuagauacccggguaguccacgcccuaaacgaug
cgcgcuaggucucugggucuccugggggccgaagcuaacgcguuaagcgc
gccgccuggggaguacggccgcaaggcugaaacucaaaggaauugacggg
ggcccgcacaagcgguggagcaugugguuuaauucgaagcaacgcgaaga
accuuaccaggccuugacaugcuagggaacccgggugaaagccuggggug
ccccgcgaggggagcccuagcacaggugcugcauggccgucgucagcucg
ugccgugagguguuggguuaagucccgcaacgagcgcaacccccgccguu
aguugccagcgguucggccgggcacucuaacgggacugcccgcgaaagcg
ggaggaaggaggggacgacgucuggucagcauggcccuuacggccugggc
gacacacgugcuacaaugcccacuacaaagcgaugccacccggcaacggg
gagcuaaucgcaaaaaggugggcccaguucggauuggggucugcaacccg
accccaugaagccggaaucgcuaguaaucgcggaucagccaugccgcggu
gaauacguucccgggccuuguacacaccgcccgucacgccaugggagcgg
gcucuacccgaagucgccgggagccuacgggcaggcgccgaggguagggc
ccgugacuggggcgaagucguaacaagguagcuguaccggaaggugcggc
uggaucaccuccuuu
....<<<<..[.((((.>>>>.<<<<.<<<<<..<<<<<<<...<..<<<
.<<<..<<<..<<.<<<<<<<<<.......>>>>>>>>>.>>>>>.....
.<<.......<<<<<<<<..<<...<<<<<<<.<<<<<....<<<<<...
...>>>>>.....>>>>>...<<<<<.<<<<<....>>>>>.>>>>>..<
<<<...>>>>.>>>>>>>..>>>>>>>>>><<<....<<<..<<<<<<<<
.......>>>>>>>>>>>......>>>..<<<<<<<<....>>>>...>>
>>.>>.<<<<<.<.........>>>>>>.<<<<....>>>>...>>>>>>
>........<<<....<<<<....>>>>..>>>...>.>>>>>>..<<<<
......<<<<....>>>>.....>>>>....<<<<<........<<<<..
...>>>>..........>>>>>......<<<<<(((...<<<<<.....<
<.)))>>.......>>>>>>>>>>..>>>>>>>>>..........<<<(.
.....<<<<...<<<.<<<<<<<.<<<<<<<<<<......<<<<<<....
.>>>>>>....>>>>>>>>..>>>>>>>>>...<<<<<<<<...<<<<<<
<....<<<<<<<....<<<......>>>.......>>>>>>>........
...<<....>>.>>>>>>>..>>>>>.>>>...>>>...>>>>....<<<
<<<...<<...<<<<.........>>>>...>>>>>>>>..........<
<<<<<..<<<<<<<<<<...>>>>>>>>>>...<<...)>>.....>>>>
>>.>>>.<<<......<<<<....>>>>....>>>..)))).]<<<<<.<
<<<<<<.<<.<<<<<<..<<<<<<<<<<......<<........>>....
......<<<<<<<.......<<<<<<....<<<<<<....>>>>>>....
<<<<....>>>>...>>>>>>..<<<.<<<..<<<<<<.......<<<<<
.<<<....>>>..<<<<......>>>>...>>>>>.....<<<<.<<<<<
<<...<...<<<.....>>>>.....>>>>>>>.....<<<<<....>>>
>>........>>>>.........>>>...>>>>>>>>>...>>>>>>>..
.>>.>>>>>>>>.....<<<<<<<.....<<<..<<..<<<<....>>>>
..>>....>>>.....>>>>>>>......<..<.<<<<<<<........>
>>>>>>>...>.....>>>>>>....<<<<<<<..........>>>>>>>
......>>...>>>>>>>>>>.>>.......<<.<.<<<<.<<<..<<<<
<<<<<<<<<...<.<<<<....<<<....>>>.>>>>.>..>>>>>>>>>
>>>>..>>>.>>>>..>.>>.........<<<<<<<<<....>>>>>>>>
>..............
Receptor-Ligand Complex Structure
Global viewLocal viewStructure summary

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PDB4v4p Translational operator of mRNA on the ribosome: how repressor proteins exclude ribosome binding.
Resolution5.5 Å
Binding residue
(original residue number in PDB)		M1 L2 T3 P5 T11 R12 R14 N15 V19 S29 R30 F31 K56 K88 P89 R91 R92 Y94 V95 G96 V97 S113 T114 S115 G117 G128 V129 G130 E132
Binding residue
(residue number reindexed from 1)		M1 L2 T3 P5 T11 R12 R14 N15 V19 S29 R30 F31 K56 K88 P89 R91 R92 Y94 V95 G96 V97 S113 T114 S115 G117 G128 V129 G130 E132
Gene Ontology
--> -->
 
 
UnboundLocalError		Python 3.6.8: /usr/bin/python3
Fri Mar 7 08:50:18 2025

A problem occurred in a Python script. Here is the sequence of function calls leading up to the error, in the order they occurred.

 /var/www/html/BioLiP/pdb.cgi in <module>()
   1435     title=pdb2title(pdbid)
   1436     if bs.startswith("BS"):
=> 1437         pubmed,uniprot=display_interaction(pdbid,asym_id,bs,title)
   1438     else:
   1439         if lig3:
pubmed = '', uniprot = '', display_interaction = <function display_interaction>, pdbid = '4v4p', asym_id = 'BK', bs = 'BS01', title = 'Translational operator of mRNA on the ribosome: how repressor proteins exclude ribosome binding.'
 /var/www/html/BioLiP/pdb.cgi in display_interaction(pdbid='4v4p', asym_id='BK', bs='BS01', title='Translational operator of mRNA on the ribosome: how repressor proteins exclude ribosome binding.')
   1295         display_ec(ec,csaOrig,csaRenu)
   1296     if go:
=> 1297         display_go(go,uniprot,pdbid,asym_id)
   1298     return pubmed,uniprot
   1299 
global display_go = <function display_go>, go = '0003735,0005840,0006412', uniprot = '', pdbid = '4v4p', asym_id = 'BK'
 /var/www/html/BioLiP/pdb.cgi in display_go(go='0003735,0005840,0006412', uniprot='', pdbid='4v4p', asym_id='BK')
    480         '''.replace("$namespace_link",namespace_link
    481           ).replace("$namespace",namespace
=>  482           ).replace("$uniprot",u
    483         ))
    484         for l,(term,name) in enumerate(go2aspect[Aspect]):
u undefined

UnboundLocalError: local variable 'u' referenced before assignment
      args = ("local variable 'u' referenced before assignment",)
      with_traceback = <built-in method with_traceback of UnboundLocalError object>